1. What is the eAG Calculator?

The eAG (Estimated Average Glucose) calculator converts HbA1c percentage values to average glucose levels in mg/dL, providing a more intuitive understanding of blood glucose control over the previous 2-3 months.

2. How Does the Calculator Work?

The calculator uses the eAG formula:

Where:

• \( HbA1c \) — Glycated hemoglobin percentage
• \( eAG \) — Estimated average glucose in mg/dL

Explanation: This linear equation provides a direct conversion from HbA1c percentage to estimated average glucose levels, helping patients better understand their diabetes management.

3. Importance of eAG Calculation

Details: Converting HbA1c to eAG helps patients relate their long-term glucose control to daily glucose meter readings, improving diabetes self-management and treatment adherence.

4. Using the Calculator

Tips: Enter HbA1c value as a percentage (e.g., 6.5, 7.0, 8.2). The value must be greater than 0.

5. Frequently Asked Questions (FAQ)

Q1: What is the relationship between HbA1c and average glucose?
A: HbA1c reflects average blood glucose levels over approximately 3 months, with each 1% change in HbA1c corresponding to about 30 mg/dL change in average glucose.

Q2: What are normal HbA1c and eAG values?
A: Normal HbA1c is below 5.7% (eAG < 117 mg/dL). Prediabetes range is 5.7-6.4% (eAG 117-137 mg/dL). Diabetes is diagnosed at 6.5% or higher (eAG ≥ 140 mg/dL).

Q3: How often should HbA1c be tested?
A: For most people with diabetes, HbA1c should be tested every 3-6 months to monitor glycemic control and treatment effectiveness.

Q4: Are there limitations to this conversion?
A: The formula provides an estimate and individual variations may occur. It may be less accurate in certain medical conditions that affect red blood cell turnover.

Q5: Can eAG replace daily glucose monitoring?
A: No, eAG provides a long-term average but doesn't show daily glucose fluctuations. Both measurements are important for comprehensive diabetes management.